Duke Energy has completed the cleanup of a coal ash deposit and river sediment from its Feb. 2, 2014 spill into the Dan River, which flows through Virginia and North Carolina.

In late June 2014, cleanup crews excavated 258 tons of material from the site of the retired Dan River Steam Station near Eden. Some 70 miles of the river was covered in gray sludge.

Duke Energy, arguably the biggest electricity company in the US, says operations continue near the Schoolfield Dam in Danville, Viriginia. Crews removed more than 2,000 tons of coal ash and river sediment since operations began on May 6. Dredging at the site, adjacent to Abreu-Grogan Park, is scheduled to be completed in July. After that, demobilization and restoration activities at the park are expected to take several weeks.

The removed material was taken to a landfill in Person County, North Carolina, where coal ash and sediment from previous removal operations has been taken. The landfill is permitted to accept this type of material. It is double-lined with groundwater monitoring.